Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add wassermanproductions/master-canvas-hermes-plugin --skill handoffgit clone --depth 1 https://github.com/wassermanproductions/master-canvas-hermes-pluginWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/wassermanproductions/master-canvas-hermes-plugin/handoff)<a href="https://agentmods.dev/skills/wassermanproductions/master-canvas-hermes-plugin/handoff"><img src="https://agentmods.dev/badge/skills/wassermanproductions/master-canvas-hermes-plugin/handoff/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/wassermanproductions/master-canvas-hermes-plugin/handoff"><img src="https://agentmods.dev/badge/skills/wassermanproductions/master-canvas-hermes-plugin/handoff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00105 | $0.00991 |
| Opus 5 | $0.00053 | $0.00495 |
| Sonnet 5 | $0.00021 | $0.00198 |
| Haiku 4.5 | $0.00011 | $0.00099 |
Grade A, and why
handoff scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Master Canvas Handoff
Use this skill when a user gives Hermes a Master Canvas handoff ZIP, extracted package folder, or project_manifest.json and wants video-generation work planned or executed from that package.
Also use it when the user wants Hermes to operate Master Canvas autonomously. In that mode, Hermes should create and maintain a Master Canvas-compatible package directly: scenes, shots, prompts, negative prompts, copied assets, references, ComfyUI/LTX jobs, Kling/Veo prompt sheets, and deliverable bins.
Default Workflow
- Inspect the package with
mastercanvas_inspect_package. - If the package is a ZIP and generation work will happen locally, extract it with
mastercanvas_extract_package. - Build the ComfyUI/LTX plan with
mastercanvas_comfy_plan. - Treat
project_manifest.jsonas the source of truth for scene order, shot order, prompts, negative prompts, references, and output bins. - Keep outputs organized by scene using
deliverables/bin_plan.jsonor theoutputBinfields in the plan.
Autonomous Master Canvas Workflow
When the user wants Hermes to create or manage a Master Canvas project:
- Use
mastercanvas_create_packageto create the package from the brief, scene list, shot list, prompts, and local asset paths. - Use
mastercanvas_upsert_scenewhen the user changes the scene structure, scene description, style prompt, or music prompt. - Use
mastercanvas_upsert_shotwhen the user adds or changes a shot, source image, prompt, negative prompt, camera direction, lens, lighting, duration, or notes. - Use
mastercanvas_inspect_packageafter changes to confirm scene count, shot count, missing assets, and readiness. - Use
mastercanvas_package_zipwhen the package is ready to share, archive, or send into downstream generation.
In autonomous mode, keep the package compatible with the Master Canvas app handoff contract. Do not invent a separate schema unless the user explicitly asks for a different format.
Package Contract
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 80 lines · 105 tokens per session scan A cd569924eeed
handoff is a skill published in the GitHub repository wassermanproductions/master-canvas-hermes-plugin (5 stars, last pushed 1mo ago), licensed MIT. It adds 105 tokens to every session and 991 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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